Articles Tagged with ''FROSTlines''

The homeowners of a medium-sized house complain of reduced airflow coming from their registers during the summer. Their air conditioner is a 4-ton (48,000 Btuh), R-22 split system with the A-coil in the plenum of the furnace located in the basement. The evaporator has an orifice for a metering device, and the condensing unit is located on the east end of the house.

It seems that everyone wants to know more about what’s going on with the state of refrigerants in the U.S.

Many air conditioning and refrigeration systems have their condensing units located outdoors for two main reasons. First, this takes advantage of the cooler outdoor ambient temperatures to reject the heat absorbed in the evaporator section, and second, to reduce noise pollution.

Many single-phase compressors require a start capacitor to assist in starting the motor. These capacitors will occasionally fail, causing a compressor to fail to start.

Potential relays are commonly found on many smaller, single-phase, capacitor-start, capacitor-run motors in the HVACR industry.

Unfortunately, much of what has been said and written in terms of the labor shortage takes the form of gloom-and-doom statistics and anecdotes that just serve to increase contractors’ worries.

Service technicians will often experience frost on a suction line or on the compressor in some refrigeration applications. Thinking that liquid refrigerant must be present because there is frost is a fallacy in most cases.

There are a number of changes effective Jan. 1, 2018 regarding Section 608 of the Clean Air Act.